Master Cylinder Replacement. Chevrolet PJJ 2000

For 1990-2009 cars

### Removal Procedure

1. Disconnect the electrical connector from the low brake fluid level switch (7).

Caution: Brake fluid may irritate eyes and skin. In case of contact, take the following actions:

• | Eye contact--rinse thoroughly with water.

• | Skin contact--wash with soap and water.

• | If ingested--consult a physician immediately.

Notice: Brake fluid will damage electrical connections and painted surfaces. Use shop cloths, suitable containers, and fender covers to prevent brake fluid from contacting these areas. Always re-seal and wipe off brake fluid containers to prevent spills.

2. Disconnect the brake pipes (5) from the master cylinder (8).
3. Plug the master cylinder brake pipe openings in order to prevent brake fluid loss and contamination.
4. Remove the master cylinder mounting nuts (4) from the studs (3) on the booster (1).
5. Remove the master cylinder (8) from the booster (1).

### Installation Procedure

1. Install the master cylinder (8) to the booster (1).

Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

2. Install the master cylinder mounting nuts (4) to the studs (3) on the booster (1).

Tighten
Tighten the master cylinder mounting nuts (4) to 27 N·m (20 lb ft).

3. Connect the brake pipes (5) to the master cylinder (8).

Tighten
Tighten the brake pipe tube nuts to 23 N·m (17 lb ft).

4. Connect the electrical connector to the low brake fluid level switch (7).
5. Fill the master cylinder to the proper level with clean brake fluid. Refer to Master Cylinder Reservoir Filling.
6. Bleed the hydraulic brake system. Refer to Hydraulic Brake System Bleeding.